A network administrator has been receiving work orders about poor voice quality crossing a branch T1. The cause is determined to be users running high bandwidth file sharing applications across the T1 sending large packets delaying the smaller voice streams. Which of the following would improve voice quality?()
第1题:
A. Logical network diagram
B. History logs
C. Baseline configurations
D. Wiring schematics
第2题:
The Ezonexam network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test? (Choose two)
A.ARP
B.CDP
C.DHCP
D.DNS
E.ICMP
第3题:
The network administrator has configured port security on a Ezonexam switch. Why would a network administrator configure port security on this Ezonexam device?
A.To prevent unauthorized hosts from getting access to the LAN
B.To limit the number of Layer 2 broadcasts on a particular switch port
C.To prevent unauthorized Telnet or SSH access to a switch port
D.To prevent the IP and MAC address of the switch and associated ports
E.None of the above
第4题:
Users on the 172.17.22.0 network cannot reach the server located on the 172.31.5.0 network.The network administrator connected to console port,issued the show ip route command,and was able to ping the server.Based on the output of the show ip route command topology shown in the graphic,what is the cause of the failure?()
A.IP routing is not enabled
B.A static route is configured incorrectly
C.The network has not fully converged
D.The FastEthernet interface on Coffee is disabled
E.The routing table on Coffee has not updated
F.The neighbor relationship table is not correctly updated
第5题:
You are the network administrator at TestKing. TestKing has been assigned the class C IP address 189.66.1.0 by its Internet Service Provider. If you divide the network range by using the 255.255.255.224 subnet mask, how many hosts can be supported on each network?()
A.14
B.16
C.30
D.32
E.62
F.64
第6题:
You are a network administrator for Ezonexam.com's Windows 2000 network.
Your network has 200 Windows 2000 Professional computers and 15 Windows 2000 Server computers.
Users on the network save their work files in home folders on a network server. The NTFS partition that contains the home folders has Encrypting File System (EFS) enabled. A user named Jack Bauer leaves the company. You grant her manager the Full Control NTFS permission to Jack's home folder. When the manager attempts to open any of the files, she receives the following error message: "Access is denied."
What should you do?
A.Use System File Checker (SFC) to decrypt the file.
B.Log on the network as the Recovery Agent. Decrypt the files for the manager.
C.Log on the network as the administrator. Use the cipher command to decrypt the files.
D.Log on the network as a member of the Backup Operators group. Decrypt the files for the manager.
第7题:
A company is experiencing network delays. The network administrator discovers that a worker in a location far from the MDF has connected an old 10BASE-T switch with redundant links to the existing network.How could this action be responsible for the impaired network performance?()
A. Connecting a host to the old switch has created a broadcast storm.
B. The 10BASE-T switch forced the entire network to be reduced to 10 Mbps operation.
C. The old switch does not support VLANs, which has disabled the VLAN configuration of the entire the network.
D. The old switch does not support full-duplex operation, effectively forcing half-duplex operation throughout the network.
E. Spanning Tree Protocol has elected the old switch as the root bridge, creating inefficient data paths through the switched network.
第8题:
A. UTP
B. Fiber
C. RG-6
D. STP
第9题:
A.ARP
B.CDP
C.DHCP
D.DNS
E.ICMP
第10题:
An administrator has provided a 24 bit netmask. Which of the following options indicates the number of host addresses that are available in a network?()